Handset for a telephone instrument



FIG. 1 is a top plan view of the handset for a telephone instrument showing my new design;

FIG. 2 is a left side elevational view with it being understood that the right side elevational view is the same;

FIG. 3 is a bottom plan view;

FIG. 4 is a front elevational view; and

FIG. 5 is a rear elevational view. 

The ornamental design for a handset for a telephone instrument, as shown and described. 